Arrangement for purifying and rendering odorless the exhaust gases of internal-combustion engines and the like



P. WACHTEL ARRANGEMENT FOR PURIFYING AND RENDERING ODORLESS THE EXHAUSTCOMBUSTION ENGINES AND THE LIKE.

' I APPLICATION FILED SEPT.23. I920- 1,402,814

GASES OF INTERNAL Patented Jan. 10, 1922.

UNITED STATES PATENT OFFICE.

PHILIP? WACHTEL, or rnanxronr on-rnn-mam, GERMANY, assranon To WILHELMsonmrnnme, A rum, or KOLN-MANKSFELD, GERMAN REPUBLIC.

ARRANGEMENT FOE PURIFYING AND RENDERING ODORLESS THE EXHAUST GASES OFINTERNAL-COMBUSTION ENGINES AND THE LIKE.

Application filed September 23, 1920. Serial No. 412,341.

' rangement for purifying and rendering odorless the exhaust tionengines and t automobiles.

Numerous apparatus have already been suggested for the purpose statedwhich generally were based onthe principle of conducting the burnt gasesejectedthrough containers provided with chambers. The ldea of conductingthe exhaust gases through a hollow body is obvious, on theone hand forreducing the noise caused by them, on the other hand to purify the gasespassing through the various chambers. Heretofore, however, and inparticular as regards automobiles, no such apparatus have been dlsclosedwhich have proved fully satisfactory. The reason for this may besought'in the fact that the method hitherto employed for purifying theseexhaust gases was one-sided only, as the gases, consisting of the burntgases and residues of the oil were conducted through the same chambers.the disadvantage that the oil particles car'- ried along in the gasescompletely coated the purifying materials in the said chambers with afilm of oil, whereby the effect which ases of internal combusdie like,in particular with was expected from these ,materialsbecame negative.

The essential idea of the present inventi'on'resides in the oilparticles being carried along in the gases and first separated from thecombustion gases. This object is obtained by means of a preliminarycleaner whilst the purifying proper of the exhaust gases is carriedoutin a separate chamber, subdivided into a plurality of sub-chambersanddisposed above the preliminary cleaner. This method has byexperiments been proved to be particularly satisfactory and it has beenfound that the heavy oil particles are readily deposited by heated cokeas they are This method showedkept in a liquid state, andthat thevolatilegasol1ne gases separate therefrom. Only after thls process hasbeencompleted' the gasoline gases can be cleaned'and rendered odorlessby means of a separate apparatus subdivided into a plurality ofchambers.

I A considerable improvement over other known arrangements consists inthe supply of fresh air into the interior of the apparatus, This freshair, however, is introduced only lnto the gas purifying chamberandcondensed there. The water particles are carried on into the variouschambers so as to keep the purifying materials, such as spagnum andother porous substances, permanentl the comli from the oil residues.

In the'accompanying drawing Fig. 1 ,is a longitudinal section,

' Fig. 2 a transverse section through the apparatus forming the subjectmatter of the present invention.

The apparatus consists of a container A, preferably of cylindricalsection and containing two sections A and A, se arated from each otherby a partition B. he exhaust gases are, afterleaving the motor conductedthrough a webbed steel pipe E into the lower oil-removing chamber, whichis filled with small pieces of very porous coke. By means of the webbedsteel pipe E the to separate and absorb the oil particles from theexhaust gases. The absorbed oil particles, which are in a very liquidstate, may from time to time be drawn oif through the tap H. The exhaustgases, after having thus been freed of the burnt oil, ass through theopening D in the partition 1? into the upper, gas-purifying chamber Awhich is subdivided into a plurality of chambers, which communicatethrough openings 05. These openings are staggered with respect to eachother, so that the gases, while passing through the chambers, are forcedto fully utilize the purifying material in the chambers. ,In order thatthe latter, consisting moist and capable of absorbing stion gases whichhave been freed Specification of Letters Patent. Pate t d J 10 1922 i 85 coke will be evenly heated so as to adapt it in the direction oftravel, so as to suck in fresh air. From this funnel the air isconducted through pipes F into the first chamher 0. At the inner edge ofthe pipes F is disposed a water pocket K, which reaches down to thebottom of the partition B. The air sucked in through the funnel isforced in the water pocket toward the heated. bottom of the partition13, where it condenses, and the water particles thus produced will becarried along by the current of gas and be absorbed by the purifyingmaterial. The gases eventually emerge in form of white vapor andabsolutely odorless through the last chamber G into the atmosphere.

The essential feature of the invention consists, aswill be apparent fromthe foregoing description, in the fact that the apparatus is composed ofthe two separate parts, in which quite different processes are carriedout, namely in chamber A the absorbing of the oil, and in chamber A theactual purifying of the gases. Both parts of the apparatus cooperate inproducing the final object desired. After 6 to 8 weeks the apparatusshould be cleaned and the fillin be renewed. For this purpose the rearlid is detached, and the whole interior system of chambers may then bedrawn out, cleaned and refilled. For facilitating its removal thepartition B is guided in rebates.

I claim:

1. Means for purifying and renderingodorle'ss the exhaust gases ofinternal combustion engines and the like, consisting of an oblongcontainer, said container divided by a horizontal partition into twocompartments, the lower compartment filled'with a material, such assmall pieces of very porous coke, adapted to absorb the oil contained inthe exhaust gases, the upper compartment subdivided into a plurality ofchambers, said chambers filled with material adapted to purify the gasespassing therethrough, means for separating the oil from the gases, meansfor keeping the material constantly moist, and means for conducting theexhaust gases coming from the motor first through the lower chamber andthereafter through the chambers of the upper compartment through astaggered course.

V 2. cans for purifying and rendering odorless the exhaust gases ofinternal combustion engines and the like, consisting of an oblongcontainer divided by a horizontal partition into a lower and an uppercompartment. the lower compartment filled with small pieces of veryporous coke or the like, a webbed radiator ,tube conducted through saidlower compartment, the upper compartment subdivided into a :plurality ofchambers filled with gas purifying material,

means for separating the oil from the gases, means for keeping thematerial constantly mo1st, and means for conducting the exhaust gasescoming from the motor through said radiator pipe and the lowercompartment and thereupon through the several chambers of the uppercompartment'through a staggered course.

3. Means for purifying and rendering odorless the exhaust gases ofinternal combustion engines and the like, consisting of an oblongcontainer divided by a horizontal I partition into 'a lower and an uppercompartment, the lower compartment filled with small pieces of veryporous coke or the like, a radiator tube conducted through said lowercompartment, the upper compartment subdivided into a plurality ofchambers filled with gas purifying material, means for separating theoil'from the gases, and means for conducting theexhaust gases comingfromthemotor through saidradiator pipe and the lower-compartment andthereupon through-the several chambers of the upper compartment, andmeans for sucking fresh air into the said upper compartment, a waterpocket through which the fresh air is forced and condensing themoisture'of said fresh air in the path of the current of gases.

4. Means for purifying and rendering odorless the exhaust gases ofinternal combustion engines and the like, consisting of an oblongcontainer divided by a horizontal partition into a lower and an uppercompartment, the lower compartment filled with small pieces of veryporous coke or the like, a radiator tube conducted through said lowercompartment, the upper compartment subdivided into a plurality ofchambers filled with gas purifying material, means for separating the011 from the gases, means for conducting the exhaust gases coming fromthe motor through said radiator pipe and the lower compartment andthereupon through the several chambers of the upper compartment,intended for use on a motor vehicle, a funnel opening in the directionof travel, adapted to suck in fresh air, means for conducting said freshair into the said upper compartment, and means, such as a water pocket,through which the fresh air is forced for condensing the moisturecontained in said fresh air in the path of the current of gas.

through the several chambers of the upper drawn out from the container,after a lid compartment, and means for sucking fresh on the latter hasbeen removed. 10 air into the said upper compartment and In witnesswhereof I have hereunto set my condensing the moisture of said fresh airin hand in presence of two witnesses.

the path of the current of gases, a Water 'PHILIPP WACHTEL. jacketthrough which the fresh air is forced, Witnesses: the said partitiontogether with the chambers VILHELM HELIICH,

of the upper compartment arranged to be GOTTFRIED MARTIN.

